A group of junior high school must find out the truth of their classmate’s death is he was killed by someone or committed suicide.

A group of junior high school must find out the truth of their classmate’s death is he was killed by someone or committed suicide.

After having narrowly escaped an attempt on his life at the hands of a psychopath, detective inspector Takakura quits active service in the police force and takes up a position as a university lecturer in criminal psychology. But his desire to get to the bottom of criminals’ motives remains, and he does not hesitate long when former colleague Nogami asks him to reopen an old case.